I installed the ZL1 Addons diffuser today so I thought I’d write up a quick review. The package came FedEx in a taped up triangular cardboard package. Parts were perfect condition and as advertised....

With The GM flex fuel sensor in line the tune will automatically adjust as it senses the ethanol level in the gas. You can run any mixture of ethanol and regular pump gas that you like. Of course the...

There’s plenty of vendors offering a variety of styles to choose from. I think with all of them there will be some holes to drill from underneath which is actually a good thing. I wouldn’t trust a 3m...